package com.richard.design.principle.singleresponsibility.interface_example;

/**
 * @author Richard·Wang
 * @Date 2021/4/4 20:22
 * @Version 1.0
 */
public class CourseImpl implements ICourseContent,ICourseManager{
    @Override
    public String getCourseName() {
        return null;
    }

    @Override
    public byte[] getCourseVideo() {
        return new byte[0];
    }

    @Override
    public void studyCourse() {

    }

    @Override
    public void refundCourse() {

    }
}
